Hie am ptjedy



(No Model.)

' H.-P=URD'Y.'

REPLEOTO'R FOR ELECTRIC LAMPS. I I No. 381,167. Patented Apr. l7, 1888.

1 full, clear, and exact description of the inin the county of Des Moines and State of Iowa,

central section in the line a: w of Fig. 4, and

ranged with their concave surfaces turned out- UNITED ST TES PATENT e HIRA-Mr nnY, or sushi-nerds, I or VA.

REFLECTOR FoR ELECTRIC LAI VlP S.

SPECIPICATIONforming part of Letters Application filed May 11, 1887..

To aZZ whom it ma concern:

Be it known that I, HIRAM PURDY, a citizen of the United States, residing at Burli ngton,

have invented certain new and useful Improvements in Reflectors for Electric Lights; I and I do hereby declare the following to be a vention, such as will enable others skilled in the art to which it appertains to make and use the same. f

My invention relates to reflectors for electric lamps by which the ascending rays of-light are deflected to any desired distance and direction. a I

The object of my invention is to utilize that portion of a light which is ordinarily diffused and expended'to no advantage, and where it mostly proves an annoyance to those using the light. v

In the accompanying drawings, Figure 1 is an elevation of an ordinary electric lampwithout its globe and provided with my reflector. Fig. 2 is an elevation of said reflector turned fortyefiv'e degrees upon its axis from the posi-. tion shownin Fig. 1. Fig. 3 is a vertical Fig. 4 is an inverted plan view of the reflector.

The letterA inFig. 1 represents an electric carbon-sticks,

ward and joining the reflector-plates 0 above at an obtuse angle and converging a suitable distance below-around the carbon stick "B in such way as to form an opening, 0, forthe carbon stick to pass freely through. Along the lines in which the reflector-plates c are joined the reflector-plates c are attached in vertical and radial directions. A

The reflector O proper is in form of an in- Verted truncated cone, and is fastened to the Patent No. 381,167, dated April 17, 188 8. Serial No. gsisso. (No moan.)

suspending-rods a of the lam pframe iniany suitable way, one mode of fastening being shown in Figs. 1 and 4, said mode compris-T ing. two collars, c, fitted to the rodsa and ad- 'justed by setscrewsc The collars are pro vided with angular flanges c, which are screwed or riveted to the reflector G, as shown at 0 An- 5 light are reflected in the desireddirectio'n in which they readily unite with the rays reflected from the reflector-plates 0'. Rays deviating I laterally so much froma radial direction that they cross the more radial rays are intercepted direction. The rays directly ascending to-ff,

wardthe concave reflector-plates ,c from the by the reflector-plates c whe'rebythey are re:

flected in asuitablc direction in which they do not interfere with the perfectoperation of the reflector G as a whole.

By omitting the reflector-plates c" the power .of the reflector '0 would not beyery perceptibly diminished; but in using the same the side rays are cut off and the eyes of the reader, writer, or similarlyoccupied person are protected against the such/rays.

annoyance of exposure of The rcflector C maybe made without thetop projecting reflector-plates, c;-'but'I p r eferto use them in order to prevent a glar'ing'top' 1 I "'99' C may be made of metal, glass,

light in-a room. The reflector or other suitable material;

What I claim as my invention,and desire to secure by Letters Patent, is- V V 1. The electric-lamp reflector constructedin form of an inverted truncated cone with concaved inclined side reflecting-plates, c, the lower ends of which are united .at the in fverted apex of the cone, and form acentral opening justlarge enough for the'passage down caved side reflecting surfaces in position for receiving and reflecting the electric rays directly from the incandescent body of light below the end of the carbon stick, substantially as and for the purpose described;

2. The electric-lamp reflector constructed in form of an inverted truncated cone withvconcaved inclined side reflecting-plates, c',curved laterally-proj ectin g reflecting-plat es 0, attached to theupper edges of the plates 0', and openings c and d for the passage through the reflector of the carbon stick B of the electric lamp, substantially as and for the purpose described.

3. The electric-lamp reflector constructed in form of an inverted truncated cone with concaved incline side reflecting-plates, c, a series of vertical radial reflector-plates, c, and central openings, 0 and d, for the passage of the 20 carbon stick B of anelectric lamp down through the reflector, substantially as and for the purpose described.

plates 0, and passages c and d, substantially" as and for the purpose described.

In testimony whereof I aflix my signature in presence of two witnesses.

HIRAM PURDY.

Witnesses: W. E. BLAKE, MELVILLE E. BLAKE. 

